Rob is a 2013 graduate of Sachem North High School, where he was a member of the basketball team. Rob was also named both All-County and All-League twice for baseball. Before transferring to Farmingdale State, Rob played baseball at Dowling College. He is the son of John and Diane Costanzo.

Senior year...Appeared and started in 9 games...Tallied two runs and two RBI's in 16 at bats.